israel is continuing to pound the gaza strip with airstrikes amidst fears that israel could launch a ground invasion. at least 21 palestinians have died in the most recent round of violence while three israelis died on thursday. israel said it launched 150 airstrikes overnight while palestinians fired a dozen rockets into israel. among the casualties was the 11- month-old son of a bbc arabic journalist. an associated press photo showed jihad misharawi clutching the wrapped body of his baby, who was killed by an israeli round that struck his home on wednesday. white house press secretary jay carney told reporters thursday -- speaking later thursday, mark toner said the onus is on hamas to stop the violence. >> the onus here is on hamas. as jay carney just said from the white house, it claims that the best interest of the palestinian people at heart, but through its actions, it is showing a far different agenda. >> israel has also continue to prepare for potential ground invasion of gaza by calling up thousands of army reservists. the egyptian prime minister visited the gaza strip frid